3428685 has 24 divisors (see below), whose sum is σ = 6401304. Its totient is φ = 1687680.

The previous prime is 3428681. The next prime is 3428717. The reversal of 3428685 is 5868243.

It can be written as a sum of positive squares in 4 ways, for example, as 35721 + 3392964 = 189^2 + 1842^2 .

It is not a de Polignac number, because 3428685 - 2² = 3428681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3428681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2346 + ... + 3515.

It is an arithmetic number, because the mean of its divisors is an integer number (266721).

Almost surely, 2^3428685 is an apocalyptic number.

It is an amenable number.

3428685 is a deficient number, since it is larger than the sum of its proper divisors (2972619).

3428685 is a wasteful number, since it uses less digits than its factorization.

3428685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5885 (or 5882 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 3428685 is about 1851.6708670819. The cubic root of 3428685 is about 150.7911531747.

The spelling of 3428685 in words is "three million, four hundred twenty-eight thousand, six hundred eighty-five".